WORKPAPERS TO PREPARED DIRECT TESTIMONY OF DEBBIE S. ROBINSON ON BEHALF OF SOUTHERN CALIFORNIA GAS COMPANY BEFORE THE PUBLIC UTILITIES COMMISSION

Transcription

1 Application of SOUTHERN CALIFORNIA GAS COMPANY for authority to update its gas revenue requirement and base rates effective January 1, 2019 (U 904-G) ) ) ) ) Application No Exhibit No.: (SCG-31-WP) WORKPAPERS TO PREPARED DIRECT TESTIMONY OF DEBBIE S. ROBINSON ON BEHALF OF SOUTHERN CALIFORNIA GAS COMPANY BEFORE THE PUBLIC UTILITIES COMMISSION OF THE STATE OF CALIFORNIA OCTOBER 2017

2 2019 General Rate Case - APP INDEX OF WORKPAPERS Exhibit SCG-31-WP - CORP CTR - PENSION & PBOPS DOCUMENT PAGE Overall Summary For Exhibit No. SCG-31-WP 1 Summary of Non-Shared Services Workpapers 2 Category: A. EMPLOYEE PENSION 3..2PN EMPLOYEE PENSION 4..2PN EMPLOYEE PENSION - PBOP 17 Appendix A: List of Non-Shared Cost Centers 26

3 Overall Summary For Exhibit No. SCG-31-WP Area: Witness: CORP CTR - PENSION & PBOPs Debbie S. Robinson In 2016 $ (000) Incurred Costs Adjusted-Recorded Adjusted-Forecast Description Non-Shared Services 70,621 89, , ,830 Shared Services Total 70,621 89, , ,830 Note: Totals may include rounding differences. Page 1 of 26

4 Area: Witness: CORP CTR - PENSION & PBOPs Debbie S. Robinson Summary of Non-Shared Services Workpapers: Adjusted- Recorded In 2016 $ (000) Incurred Costs Adjusted-Forecast Description A. EMPLOYEE PENSION 70,621 89, , ,830 Total 70,621 89, , ,830 Note: Totals may include rounding differences. Page 2 of 26

5 Area: Witness: Category: Workpaper: CORP CTR - PENSION & PBOPs Debbie S. Robinson A. EMPLOYEE PENSION VARIOUS Summary for Category: A. EMPLOYEE PENSION In 2016$ (000) Incurred Costs Adjusted-Recorded Adjusted-Forecast Labor Non-Labor 70, NSE 0 89, , ,830 Total 70,621 89, , ,830 FTE Workpapers belonging to this Category: 2PN EMPLOYEE PENSION Labor Non-Labor 70, NSE 0 86, ,890 Total 70,350 86, ,890 FTE PN EMPLOYEE PENSION - PBOP Labor Non-Labor NSE 0 2,340 0 Total 271 2,340 0 FTE , , Note: Totals may include rounding differences. SCG/PENSION & PBOPs/Exh No:SCG-31-WP/Witness: D. Robinson Page 3 of 26

6 Beginning of Workpaper 2PN EMPLOYEE PENSION Page 4 of 26

7 Area: Witness: Category: Category-Sub Workpaper: CORP CTR - PENSION & PBOPs Debbie S. Robinson A. EMPLOYEE PENSION 1. EMPLOYEE PENSION 2PN EMPLOYEE PENSION Activity Description: This is SCG's qualified retirement benefits plan, also known as the Southern California Gas Company Pension Plan. Represented and non-represented employees participate in the plan. Forecast Explanations: Labor - Zero-Based Please see NSE below Non-Labor - Zero-Based Please see NSE below NSE - Zero-Based Zero Based method chosen as pension contributions are provided by the Company's certified actuary Willis Towers Watson. Summary of Results: In 2016$ (000) Incurred Costs Adjusted-Recorded Adjusted-Forecast Years Labor Non-Labor 44,037 56,822 26,513 4,667 70, NSE , , ,830 Total 44,037 56,822 26,513 4,667 70,350 86, , ,830 FTE Note: Totals may include rounding differences. Page 5 of 26

8 Area: Witness: Category: Category-Sub: Workpaper: CORP CTR - PENSION & PBOPs Debbie S. Robinson A. EMPLOYEE PENSION 1. EMPLOYEE PENSION 2PN EMPLOYEE PENSION Summary of Adjustments to Forecast: Forecast Method In 2016 $(000) Incurred Costs Base Forecast Forecast Adjustments Adjusted-Forecast Years Labor Zero-Based Non-Labor Zero-Based NSE Zero-Based , , ,830 86, , ,830 Total , , ,830 86, , ,830 FTE Zero-Based Forecast Adjustment Details: Year Adj Group Labor NLbr NSE Total FTE Adj_Type 2017 Other ,900 86, Sided Adj RefID JECHERRY Explanation: 2017 Pension Projection 2017 Total ,900 86, Other , , Sided Adj JECHERRY Explanation: 2018 Pension Projection 2018 Total , , Other , , Sided Adj JECHERRY Explanation: 2019 Pension Projection 2019 Total , , Note: Totals may include rounding differences. Page 6 of 26

9 Area: Witness: Category: Category-Sub: Workpaper: CORP CTR - PENSION & PBOPs Debbie S. Robinson A. EMPLOYEE PENSION 1. EMPLOYEE PENSION 2PN EMPLOYEE PENSION Determination of Adjusted-Recorded (Incurred Costs): 2012 ($000) 2013 ($000) Recorded (Nominal $)* 2014 ($000) 2015 ($000) 2016 ($000) Labor Non-Labor 42,800 56,123 26,600 4,655 70,350 NSE Total 42,800 56,123 26,600 4,655 70,350 FTE Adjustments (Nominal $) ** Labor Non-Labor NSE Total FTE Recorded-Adjusted (Nominal $) Labor Non-Labor 42,800 56,123 26,600 4,655 70,350 NSE Total 42,800 56,123 26,600 4,655 70,350 FTE Vacation & Sick (Nominal $) Labor Non-Labor NSE Total FTE Escalation to 2016$ Labor Non-Labor 1, NSE Total 1, FTE Recorded-Adjusted (Constant 2016$) Labor Non-Labor 44,037 56,822 26,513 4,667 70,350 NSE Total 44,037 56,822 26,513 4,667 70,350 FTE * After company-wide exclusions of Non-GRC costs ** Refer to "Detail of Adjustments to Recorded" page for line item adjustments Note: Totals may include rounding differences. Page 7 of 26

10 Area: Witness: Category: Category-Sub: Workpaper: CORP CTR - PENSION & PBOPs Debbie S. Robinson A. EMPLOYEE PENSION 1. EMPLOYEE PENSION 2PN EMPLOYEE PENSION Summary of Adjustments to Recorded: Labor Non-Labor NSE FTE Years Total In Nominal $ (000) Incurred Costs Year Adj_Group Labor NLbr NSE FTE Adj_Type RefID Note: Totals may include rounding differences. Page 8 of 26

11 Supplemental Workpapers for Workpaper 2PN Page 9 of 26

12 Southern California Gas Company Pension Contribution Projection For Years ASSUMPTIONS 1. Pension contribution amounts based on estimates provided by the Company's certified actuary, Willis Towers Watson. Projected Pension Contributions $ 86,900,000 $ 117,890,000 $ 202,830,000 See Attached Projection from Willis Towers Watson SCG/PENSION & PBOPs/Exh No:SCG-31-WP/Witness: D. Robinson Page 10 of 26

13 Southern California Gas Company Pension Plan General Rate Case Forecast 10-Year Forecast of Projected ASC Accounting Costs and Contributions reflecting Projected Headcoun ($ in millions) Pension SoCalGas Company Pension Plan FAS Cost (baseline) Minimum required contribution (baseline) PPA funded percentage (baseline) Actuarial value of assets (including receivables) 1, , , , , , , , , , Funding target 1, , , , , , , , , , Funded percentage 94% 86% 88% 88% 87% 87% 88% 92% 96% 100% New funding policy (FAS service cost + 7 yr amort) PBO funded percentage (new policy) Fair value of assets 1, , , , , , , , , , PBO 2, , , , , , , , , , Funded percentage 68% 67% 68% 76% 82% 88% 94% 100% 106% 110% FAS discount rate 4.10% 4.10% 4.10% 4.10% 4.10% 4.10% 4.10% 4.10% 4.10% 4.10% SCG/PENSION & PBOPs/Exh No:SCG-31-WP/Witness: D. Robinson Page 11 of 26

14 Southern California Gas Company Pension Plan Additional Projection Details Exhibit 1: Projected Funding Policy Contributions Projected Funding Policy Contribution ($thousand) A. Policy Base Amount (New Policy) 1. Projected Benefit Obligation n/a n/a 2,283,498 2,277,035 2,285,306 2,294,932 2,312,540 2,341,034 2,380,776 2,431,309 2,492, Fair value of assets 1,555,474 1,736,045 1,879,908 2,029,696 2,175,558 2,337,431 2,516,119 2,674,440 2,741, Shortfall ( ) 728, , , , ,982 3,603 (135,343) (243,131) 4. Discount rate 4.10% 4.10% 4.10% 4.10% 4.10% 4.10% 4.10% 4.10% 5. 7-year amortization factor Present value of remaining payments - 440,880 10, Shortfall amortization amount ( ( ) / 5.) 116,950 (28,215) (23,441) 8. Shortfall amortization at 1/1/ , , , , , , , Shortfall amortization at 1/1/2022 (28,215) (28,215) (28,215) (28,215) (28,215) 10. Shortfall amortization at 1/1/2025 (23,441) (23,441) 11. Service Cost at Base Year 77,894 89, , Shortfall amortization ( ) 116,950 88,735 65, Base Policy Amount ( ) 194, , , , , , , , EOY Base Policy Amount 13. * , , , , , , , ,281 B. Minimum Required Contribution 1. MRC (Exhibit 2, C.6) 86, , ,670 52, C. 85% AFTAP Minimum 1. Funding Target Liability at 1/1 1,693,860 1,807,278 1,836,595 1,869,544 1,967,539 2,068,327 2,175,370 2,243,353 2,295,826 2,359, % of 1. 1,439,781 1,536,186 1,561,106 1,589,112 1,672,408 1,758,078 1,849,065 1,906,850 1,951,452 2,005, Actuarial Value of Assets 1,600,011 1,563,183 1,608,819 1,731,122 1,871,926 2,014,496 2,150,531 2,301,563 2,474,290 2,629, Minimum Required Contribution reflecting payment timing % AFTAP Minimum at the end of the year D. 110% of PBO Cap % of PBO at t+1 2,504,739 2,513,837 2,524,425 2,543,794 2,575,137 2,618,854 2,674,440 2,741, Fair value of assets at t+1 (prior to contribution at t) 1,533,212 1,677,075 1,826,863 1,990,454 2,152,327 2,331,015 2,526,528 2,699, Maximum contribution (end of year) ( ) 971, , , , , , ,912 42,164 E. Funding Policy Contribution 1. Old policy amount (greater of B.1 and C.5) 86, , New policy amount (greater of A.14, B.1, and C.5, not no more than D.3) 202, , , , , , ,912 42, Recoverable amount (1. before 2018, 2. after) 86, , , , , , , , ,912 42,164 SCG/PENSION & PBOPs/Exh No:SCG-31-WP/Witness: D. Robinson Page 12 of 26

15 Southern California Gas Company Pension Plan Additional Projection Details Exhibit 2: Projected Minimum Required Contributions If Contributions Made Under New Policy Projected Minimum Required Contribution ($thousand) A. Funding Shortfall 1. Effective Interest Rate (EIR) 5.94% 5.75% 5.58% 5.44% 5.04% 4.64% 4.27% 4.14% 4.13% 4.12% 2. Funding Target Liability 1,693,860 1,807,278 1,836,595 1,869,544 1,967,539 2,068,327 2,175,370 2,243,353 2,295,826 2,359, Actuarial value of assets 1,600,011 1,563,183 1,608,819 1,731,122 1,871,926 2,014,496 2,150,531 2,301,563 2,474,290 2,629, Prefunding balance , , , , , , , Funding shortfall / (surplus) (2. - [3. -4.]) 93, , , , , , , ,606 88,024 10,603 B. Shortfall Amortization Payments 1. Starting 1/1/2016 3,000 3,000 3,000 3,000 3,000 3, Starting 1/1/ ,764 12,764 12,764 12,764 12,764 12,764 12, Starting 1/1/ ,323 26,323 26,323 26,323 26,323 26,323 26, Starting 1/1/2019 2,314 2,314 2,314 2,314 2,314 2,314 2, Starting 1/1/2020 3,699 3,699 3,699 3,699 3,699 3,699 3, Starting 1/1/ ,593 11,593 11,593 11,593 11,593 11, Starting 1/1/ ,681 10,681 10,681 10,681 10, Starting 1/1/2023 9,149 9,149 9,149 9, Starting 1/1/2024 (215) (215) (215) 10. Starting 1/1/2025 (6,179) (6,179) 11. Starting 1/1/2026 (7,327) 12. Total (Sum of 1. through 11.) 15,764 42,087 44,401 48,100 59,693 70,374 76,523 63,544 31,042 21,401 C. Minimum Required Contribution 1. Target Normal Cost at 1/1 67,625 71,070 75,729 79,976 87,878 95, , , , , Adjusted Target Normal Cost (1. + A.5. if surplus) 67,625 71,070 75,729 79,976 87,878 95, , , , , Shortfall amortization (B.12.) 15,764 42,087 44,401 48,100 59,693 70,374 76,523 63,544 31,042 21, Prefunding balance (A.4) , , , , , , , Minimum Required Contribution ( , no less than $0) 83, , ,130 51, Minimum Required Contribution reflecting payment timing 86, , ,670 52, SCG/PENSION & PBOPs/Exh No:SCG-31-WP/Witness: D. Robinson Page 13 of 26

16 Southern California Gas Company Pension Plan Additional Projection Details Exhibit 3: Projected Assets If Contributions Made Under New Policy Projected Assets ($thousand) A. Fair Value of Assets (FVA) 1. FVA at beginning of year 1,579,289 1,540,829 1,555,474 1,736,045 1,879,908 2,029,696 2,175,558 2,337,431 2,516,119 2,674, Employer contributions (adjusted for timing and interest) 50, , , , , , , , ,912 42, Benefit payments (186,883) (183,017) (177,869) (167,957) (169,779) (165,839) (159,512) (153,415) (148,367) (143,841) 4. Investment return 98,130 97,553 99, , , , , , , , FVA at end of year (sum 1 through 4) 1,540,829 1,555,474 1,736,045 1,879,908 2,029,696 2,175,558 2,337,431 2,516,119 2,674,440 2,699, Assumed investment return 6.50% 6.50% 6.50% 6.50% 6.50% 6.50% 6.50% 6.50% 6.50% 6.50% B. Actuarial Asset Value for Minimum Purposes 1. Market value of assets (MVA), without receivables 1,579,289 1,540,829 1,555,474 1,736,045 1,879,908 2,029,696 2,175,558 2,337,431 2,516,119 2,674, Present value of receivables 9 36,700 55, MVA including receivables ( ) 1,579,298 1,577,529 1,610,958 1,736,045 1,879,908 2,029,696 2,175,558 2,337,431 2,516,119 2,674, Asset gain or (loss) from prior year 42, ,072 5,848 9,048 18,275 28,403 39,601 42,943 46, Asset gain or (loss) from two years prior (147,267) 42, ,072 5,848 9,048 18,275 28,403 39,601 42, Asset deferral (20,713) 14,346 2,138 4,923 7,982 15,200 25,027 35,868 41,829 45, Actuarial value of assets (AVA) prior to corridor ( ) 1,600,011 1,563,183 1,608,820 1,731,122 1,871,926 2,014,496 2,150,531 2,301,563 2,474,290 2,629, Lower corridor 90% of MVA 1,421,368 1,419,776 1,449,862 1,562,441 1,691,917 1,826,726 1,958,002 2,103,688 2,264,507 2,406, Upper corridor 110% of MVA 1,737,228 1,735,282 1,772,054 1,909,650 2,067,899 2,232,666 2,393,114 2,571,174 2,767,731 2,941, Final AVA (limited to 90% to 110% of MVA) 1,600,011 1,563,183 1,608,820 1,731,122 1,871,926 2,014,496 2,150,531 2,301,563 2,474,290 2,629,198 SCG/PENSION & PBOPs/Exh No:SCG-31-WP/Witness: D. Robinson Page 14 of 26

17 Southern California Gas Company Pension Plan Additional Projection Details Exhibit 4: Projected Minimum Required Contributions If Contributions Made Under Prior Policy Projected Minimum Required Contribution ($thousand) A. Funding Shortfall 1. Effective Interest Rate (EIR) 5.94% 5.75% 5.58% 5.44% 5.04% 4.64% 4.27% 4.14% 4.13% 4.12% 2. Funding Target Liability 1,693,860 1,807,278 1,836,595 1,869,544 1,967,539 2,068,327 2,175,370 2,243,353 2,295,826 2,359, Actuarial value of assets 1,600,011 1,563,183 1,608,819 1,654,124 1,721,096 1,807,148 1,919,949 2,060,492 2,213,189 2,354, Prefunding balance Funding shortfall / (surplus) (2. - [3. -4.]) 93, , , , , , , ,861 82,637 5,178 B. Shortfall Amortization Payments 1. Starting 1/1/2016 3,000 3,000 3,000 3,000 3,000 3, Starting 1/1/ ,764 12,764 12,764 12,764 12,764 12,764 12, Starting 1/1/ ,323 26,323 26,323 26,323 26,323 26,323 26, Starting 1/1/2019 2,314 2,314 2,314 2,314 2,314 2,314 2, Starting 1/1/2020 3,702 3,702 3,702 3,702 3,702 3,702 3, Starting 1/1/ ,515 11,515 11,515 11,515 11,515 11, Starting 1/1/ ,492 10,492 10,492 10,492 10, Starting 1/1/2023 8,863 8,863 8,863 8, Starting 1/1/2024 (518) (518) (518) 10. Starting 1/1/2025 (6,390) (6,390) 11. Starting 1/1/2026 (7,476) 12. Total (Sum of 1. through 11.) 15,764 42,087 44,401 48,103 59,618 70,110 75,973 62,691 29,978 20,188 C. Minimum Required Contribution 1. Target Normal Cost at 1/1 67,625 71,070 75,729 79,976 87,878 95, , , , , Adjusted Target Normal Cost (1. + A.5.if surplus) 67,625 71,070 75,729 79,976 87,878 95, , , , , Shortfall amortization (B.12.) 15,764 42,087 44,401 48,103 59,618 70,110 75,973 62,691 29,978 20, Prefunding credit (A.4) Minimum Required Contribution ( , no less than $0) 83, , , , , , , , , , Minimum Required Contribution reflecting payment timing 86, , , , , , , , , ,550 SCG/PENSION & PBOPs/Exh No:SCG-31-WP/Witness: D. Robinson Page 15 of 26

18 Southern California Gas Company Pension Plan Additional Projection Details Exhibit 5: Projected Assets If Contributions Made Under Prior Policy Projected Assets ($thousand) A. Fair Value of Assets (FVA) 1. FVA at beginning of year 1,579,289 1,540,829 1,555,474 1,615,375 1,682,431 1,764,774 1,882,276 2,029,243 2,190,145 2,343, Employer contributions (adjusted for timing and interest) 50, , , , , , , , , , Benefit payments (186,883) (183,017) (177,869) (167,957) (169,779) (165,839) (159,512) (153,415) (148,367) (143,841) 4. Investment return 98,130 97,553 99, , , , , , , , FVA at end of year (sum 1 through 4) 1,540,829 1,555,474 1,615,375 1,682,431 1,764,774 1,882,276 2,029,243 2,190,145 2,343,934 2,498, Assumed investment return 6.50% 6.50% 6.50% 6.50% 6.50% 6.50% 6.50% 6.50% 6.50% 6.50% B. Actuarial Asset Value for Minimum Purposes 1. Market value of assets (MVA), without receivables 1,579,289 1,540,829 1,555,474 1,615,375 1,682,431 1,764,774 1,882,276 2,029,243 2,190,145 2,343, Present value of receivables 9 36,700 55,484 43,685 46,451 56,663 60,588 63,809 60,960 50, MVA including receivables ( ) 1,579,298 1,577,529 1,610,958 1,659,060 1,728,882 1,821,437 1,942,864 2,093,052 2,251,105 2,394, Asset gain or (loss) from prior year 42, ,072 5,868 8,743 17,061 25,841 35,920 38,914 41, Asset gain or (loss) from two years prior (147,267) 42, ,072 5,868 8,743 17,061 25,841 35,920 38, Asset deferral (20,713) 14,346 2,138 4,936 7,785 14,288 22,914 32,560 37,916 40, Actuarial value of assets (AVA) prior to corridor ( ) 1,600,011 1,563,183 1,608,820 1,654,124 1,721,097 1,807,149 1,919,950 2,060,492 2,213,189 2,354, Lower corridor 90% of MVA 1,421,368 1,419,776 1,449,862 1,493,154 1,555,994 1,639,293 1,748,578 1,883,747 2,025,995 2,155, Upper corridor 110% of MVA 1,737,228 1,735,282 1,772,054 1,824,966 1,901,770 2,003,581 2,137,150 2,302,357 2,476,216 2,634, Final AVA (limited to 90% to 110% of MVA) 1,600,011 1,563,183 1,608,820 1,654,124 1,721,097 1,807,149 1,919,950 2,060,492 2,213,189 2,354,001 SCG/PENSION & PBOPs/Exh No:SCG-31-WP/Witness: D. Robinson Page 16 of 26

19 Beginning of Workpaper 2PN EMPLOYEE PENSION - PBOP Page 17 of 26

20 Area: Witness: Category: Category-Sub Workpaper: CORP CTR - PENSION & PBOPs Debbie S. Robinson A. EMPLOYEE PENSION 2. EMPLOYEE PENSION - PBOP 2PN EMPLOYEE PENSION - PBOP Activity Description: SCG provides post-retirement benefits other than pensions (PBOP) such as health and life insurance benefits, also known as the Southern California Gas Company Postretirement Welfare Plan. Represented and non-represented employees participate in the plan. Forecast Explanations: Labor - Zero-Based Please see NSE below Non-Labor - Zero-Based Please see NSE below NSE - Zero-Based Zero Based method chosen as PBOP contributions are provided by the Company's certified actuary Willis Towers Watson. Summary of Results: In 2016$ (000) Incurred Costs Adjusted-Recorded Adjusted-Forecast Years Labor Non-Labor 23,359 9, NSE , Total 23,359 9, , FTE Note: Totals may include rounding differences. Page 18 of 26

21 Area: Witness: Category: Category-Sub: Workpaper: CORP CTR - PENSION & PBOPs Debbie S. Robinson A. EMPLOYEE PENSION 2. EMPLOYEE PENSION - PBOP 2PN EMPLOYEE PENSION - PBOP Summary of Adjustments to Forecast: Forecast Method In 2016 $(000) Incurred Costs Base Forecast Forecast Adjustments Adjusted-Forecast Years Labor Zero-Based Non-Labor Zero-Based NSE Zero-Based , , Total , , FTE Zero-Based Forecast Adjustment Details: Year Adj Group Labor NLbr NSE Total FTE Adj_Type 2017 Other 0 0 2,340 2, Sided Adj RefID JECHERRY Explanation: 2017 PBOP projection 2017 Total 0 0 2,340 2, Total Total Note: Totals may include rounding differences. Page 19 of 26

22 Area: Witness: Category: Category-Sub: Workpaper: CORP CTR - PENSION & PBOPs Debbie S. Robinson A. EMPLOYEE PENSION 2. EMPLOYEE PENSION - PBOP 2PN EMPLOYEE PENSION - PBOP Determination of Adjusted-Recorded (Incurred Costs): 2012 ($000) 2013 ($000) Recorded (Nominal $)* 2014 ($000) 2015 ($000) 2016 ($000) Labor Non-Labor 22,384 9, NSE Total 22,384 9, FTE Adjustments (Nominal $) ** Labor Non-Labor NSE Total FTE Recorded-Adjusted (Nominal $) Labor Non-Labor 22,703 9, NSE Total 22,703 9, FTE Vacation & Sick (Nominal $) Labor Non-Labor NSE Total FTE Escalation to 2016$ Labor Non-Labor NSE Total FTE Recorded-Adjusted (Constant 2016$) Labor Non-Labor 23,359 9, NSE Total 23,359 9, FTE * After company-wide exclusions of Non-GRC costs ** Refer to "Detail of Adjustments to Recorded" page for line item adjustments Note: Totals may include rounding differences. Page 20 of 26

23 Area: Witness: Category: Category-Sub: Workpaper: CORP CTR - PENSION & PBOPs Debbie S. Robinson A. EMPLOYEE PENSION 2. EMPLOYEE PENSION - PBOP 2PN EMPLOYEE PENSION - PBOP Summary of Adjustments to Recorded: Labor Non-Labor NSE FTE Years Total In Nominal $ (000) Incurred Costs Detail of Adjustments to Recorded: Year Adj_Group Labor NLbr NSE FTE Adj_Type RefID 2012 Other Sided Adj JECHERRY Explanation: Adjust to agree to PBOP funding amount 2012 Total Total Total Total Total Note: Totals may include rounding differences. Page 21 of 26

24 Supplemental Workpapers for Workpaper 2PN Page 22 of 26

25 Southern California Gas Company PBOP Contribution Projection For Years ASSUMPTIONS 1. PBOP contribution amounts based on estimates provided by the Company's certified actuary, Willis Towers Watson. Projected PBOP Contributions $ 2,340,000 $ - $ - See Attached Projection from Willis Towers Watson SCG/PENSION & PBOPs/Exh No:SCG-31-WP/Witness: D. Robinson Page 23 of 26

26 Southern California Gas Company PBOP General Rate Case Forecast 10-Year Forecast of Projected ASC Accounting Costs and Contributions reflecting Projected Headcoun ($ in millions) PBOP SoCalGas PBOP FAS Cost 2.34 (9.63) (10.01) (8.63) (7.76) (6.88) (5.95) (5.11) (4.33) (3.49) Contributions Contributions to trust Pay-as-you-go Total contributions APBO funded percentage (alternative) Fair value of assets APBO Funded percentage 126% 124% 124% 125% 125% 126% 126% 126% 126% 125% FAS discount rate 4.20% 4.20% 4.20% 4.20% 4.20% 4.20% 4.20% 4.20% 4.20% 4.20% SCG/PENSION & PBOPs/Exh No:SCG-31-WP/Witness: D. Robinson Page 24 of 26

27 SDG&E and SoCalGas PBOP 10-Year Forecast of Projected ASC Accounting Costs and Contributions reflecting Projected Headcount Other Key Assumptions and Methodology: PBOP Other Key Assumptions Ultimate FAS Discount rate See forecast exhibits Expected Return on Plan Assets for Determining ASC 715 Benefit Cost (except for post tax VEBAs and SoCalGas 401(h)) 7.00% 7.00% 7.00% 7.00% 7.00% 7.00% 7.00% 7.00% 7.00% 7.00% Expected Return on SoCalGas 401(h) 5.50% 5.50% 5.50% 5.50% 5.50% 5.50% 5.50% 5.50% 5.50% 5.50% Expected Return on Post Tax VEBAs (PBOP) ( p p 4.00% 4.00% 4.00% 4.00% 4.00% 4.00% 4.00% 4.00% 4.00% 4.00% SoCalGas 401(h)) 6.50% 6.50% 6.50% 6.50% 6.50% 6.50% 6.50% 6.50% 6.50% 6.50% Assumed Actual Return on SoCalGas 401(h) 5.00% 5.00% 5.00% 5.00% 5.00% 5.00% 5.00% 5.00% 5.00% 5.00% Assumed Actual Return on Post Tax VEBAs (PBOP) 4.00% 4.00% 4.00% 4.00% 4.00% 4.00% 4.00% 4.00% 4.00% 4.00% Assumed Return other than from unrealized and realized gains / (losses) for MRVA purposes 2.50% 2.50% 2.50% 2.50% 2.50% 2.50% 2.50% 2.50% 2.50% 2.50% Healthcare Cost Trend (Pre-age 65) 8.00% 7.00% 6.50% 6.00% 5.50% 5.00% 5.00% 5.00% 5.00% 5.00% 5.00% Healthcare Cost Trend (Post-age 65) 5.50% 5.00% 4.75% 4.75% 4.75% 4.50% 4.50% 4.50% 4.50% 4.50% 4.50% Salary Scale - Qualified plans, excluding SoCalGas Union Age Based Age Based Age Based Age Based Age Based Age Based Age Based Age Based Age Based Age Based Salary Scale - SoCalGas Union Service Based Service Based Service Based Service Based Service Based Service Based Service Based Service Based Service Based Service Based Salary Scale - Nonqualified plans, Executive Life Insurance 4.50% 4.50% 4.50% 4.50% 4.50% 4.50% 4.50% 4.50% 4.50% 4.50% Cash Balance Crediting Rate/Interest Crediting Rate for HRA 2.86% 2.86% 2.86% 2.86% 2.86% 2.86% 2.86% 2.86% 2.86% 2.86% Pre-retirement Mortality RP-2016 Employee table with MP-2016 generational projection scale Post-retirement Mortality Sempra specific table, base year of 2011, with MP-2016 generational projection scale from 2011 Retirement/Termination/Participation Rates and Marital Status Same as those used for 2016 year-end disclosures Number of projected headcount (provided by Sempra on July 26, 2017) (1) 12/31/ /31/ /31/ /31/ /31/ /31/ /31/ /31/ /31/ /31/ /31/2026 SoCalGas 8,042 7,900 8,142 8,624 8,624 8,624 8,624 8,624 8,624 8,624 8,624 SDG&E 4,134 4,215 4,315 4,515 4,515 4,515 4,515 4,515 4,515 4,515 4,515 (1) The count does not reflect employees on leave of absence. The number of employees on leave is assumed to remain level throughout the forecast period based on number of employees on leave as of January 1, Refer to September 22, 2016 with updates through December 19, 2016 Assumptions Review sent on January 7, 2017 and provided with December 31, 2016 discount rate analyses for assumptions not shown above. Methodology Assets Reflects trust information through December 31, 2016 Data and Demographics January 1, 2016 participant census, except Executive Life Insurance and Directors' pension plans which are as of December 31, Assumed level headcount unless otherwise stated Plan Design Includes all plan changes described with December 31, 2016 disclosure Contribution Amounts Contributions for PBOPs equal to sum of contributions to trusts plus expected benefit payments from general assets Contribution Policy SoCalGas and SDG&E PBOP: equal to smaller of postretirement benefit costs or maximum tax deductible contributions plus key employee benefit payments paid Sempra PBOP: expected benefit payments or premiums per current pay-as-you-go policy Southern California Gas Company SCG/PENSION & PBOPs/Exh No:SCG-31-WP/Witness: D. Robinson Page 25 of 26

28 Area: Witness: CORP CTR - PENSION & PBOPs Debbie S. Robinson Appendix A: List of Non-Shared Cost Centers Cost Center Sub Description EMPLOYEE PENSION Page 26 of 26